Baroness Scott of Bybrook: My Lords, I thank the noble Baroness, Lady Hayman of Ullock, for securing this important debate—I know that not many people have spoken, but it is quality and not quantity that matters here—and for speaking, as always, so passionately. I thank the noble Baroness and the noble Lord, Lord Stunell, for the supportive and constructive approach they have taken during our deliberations on the subject of building safety over a number of months now.
As noble Lords will know, the Government have introduced a number of improvements in the building regulations and the statutory guidance to improve safety standards for new buildings, though we recognise that there is still more to do. In 2018, in the wake of the Grenfell Tower tragedy, the Government introduced changes to the Building Regulations 2010 to ban the  use of combustible materials within the external walls of new residential buildings. The parent legislation for this ban is the Building Act 1984. The ban strictly limits the materials used on the external walls of new buildings to those achieving the two best “reaction to fire” classifications. The priority was to improve public safety by removing the flexibility previously given to designers, while making the route to compliance with the building regulations clearer for new blocks of flats of more than 18 metres in height.
The instrument we are debating today builds on the steps taken following Grenfell to improve the framework of rules for the construction of new buildings. A review of the combustible materials ban was undertaken in 2019, in line with the Government’s commitment to do so. Following the review, the Government consulted in 2020 on changes to the scope of the ban, including the height threshold; the building types covered; the list of exemptions; whether to include attachments such as blinds; and whether to specifically ban the use of metal composite panels.
In response to the Secondary Legislation Scrutiny Committee’s fourth report, which we are really discussing tonight, the Government received many detailed consultation responses—more than 850. I asked what we would normally get, and it would be around 300, so we are talking nearly three times as many. The responses showed no broad support for lowering the height threshold of the ban. A large number of respondents—318, or 44%—were against any extension of the regulatory ban, seeing it as a blunt instrument that could hinder the use of more environmentally friendly building materials. The numerous consultation responses were diligently analysed and helped us improve our initial proposals to develop a proportionate policy. The ban remained in place while detailed work went on in the intervening period to work up the packages, announced on 1 June, of linked policy measures, including the instrument we are debating, alongside new statutory guidance for buildings between 11 and 18 metres.
This instrument will amend the Building Regulations 2010 to bring hotels, hostels and boarding houses within the scope of the ban. I note that noble Lords want to look at other multi-occupancy buildings as well, and this piece of work never stops: we are continuously reviewing what needs to be done to make our housing safe.
The instrument also bans certain metal composite materials with a polyethylene core—the type used on Grenfell Tower—from use in the external walls of all buildings at any height. It also makes important technical changes to clarify inclusions and exemptions to the ban. These broad and significant regulatory changes will improve building safety overall and work hand in hand with the updated statutory guidance to clarify the rules for new buildings going forward, providing greater reassurances to the housing market for new buildings.
The 2018 regulatory ban on combustible materials introduced firm and clear rules for buildings where the risk from external fire spread is greater. This approach is in line with the Government’s and experts’ view that the level of risk in buildings is proportionate to their height, although we recognise that this is not the only factor. It is right, therefore, that the focus of the strict  regulatory ban is on these high-rise buildings. In all cases, for buildings at any height, the functional requirement must be met to adequately resist the fire spread over external walls, having regard to the height, use and position of the building.
The new statutory guidance on the combustibility of materials used in the external walls of new buildings between 11 and 18 metres in height builds on changes already made to approved document B in 2020 for sprinkler systems to be provided in all new blocks of flats over 11 metres. It will set clear, strong and proportionate safety standards for all 11 to 18-metre residential buildings while affording scope to build lower-risk, medium-rise buildings with more sustainable materials, providing they are used safely.
Moving to the Building Safety Act 2022, the instrument we are debating amends the Building Regulations 2010. Building regulations apply to building works; they are not retrospective and do not apply to existing buildings where no building works are carried out. Noble Lords will be aware that the Government are separately implementing most of the recommendations of the Hackitt review through the Building Safety Act, which achieved Royal Assent on 28 April.
We are making good progress with the programme of secondary legislation to implement the powers of this Act. We have laid four sets of regulations, two of which legislate for leaseholder protections included in the Act. The first consultation, on the Higher Risk Buildings (Descriptions and Supplementary Provisions) Regulations, has already been published. We expect to consult on further regulations over this summer and autumn.
A number of specific questions were asked. The noble Lord, Lord Stunell, asked about the building safety regulator, from which the building advisory committee will come. The building safety regulator was established in shadow form in January 2020 to assist the Government to develop the reforms for the Building Safety Act 2022 and prepare itself and the sector for the new regulatory regime. It is intended that the new regime will fully come into force by April 2024. The key interim steps include opening the register for high-rise buildings in April 2023, which will require accountable persons to register their buildings. I do not have a date for when the building advisory committee will be set up, but I will write to the noble Lord and give him the timescale on which it will be put in place.
In response to the noble Baroness, Lady Hayman, this SI is about new buildings, but that does not mean we have done nothing about remediation of buildings that are already there. We have provided £5.1 billion to address the fire safety risks caused by unsafe cladding on high-rise residential buildings; 94% of buildings with unsafe ACM cladding have been remediated or have work under way, and 100% of buildings in the social care sector have been fixed. For high-rise buildings with unsafe non-ACM cladding, over £1.2 billion has been allocated through the building safety fund. We are reopening the fund soon to make sure that any building with dangerous cladding is fixed as soon as possible.
Both noble Lords asked about confidence in enforcement. This is important—there is no point putting anything in place if you cannot enforce it and ensure that it is done. The new powers in the Building Safety Act will give building control bodies greater powers to enforce the requirements of the building regulations, including the materials banned by this instrument. They also include greater penalties for breaching the regulations. I will write to the noble Baroness in more detail to make sure that she is confident on the enforcement and copy it to the noble Lord, Lord Stunell.
In closing, I thank the noble Baroness for raising this matter and both noble Lords for their thoughtful contributions to this debate. Underpinning the Government’s work on building safety is a steadfast commitment to honour the memory of the 72 men, women and children who senselessly lost their lives at Grenfell.
I know that there is a shared desire across the House to ensure that people are safe, and feel safe, in their own homes. The Government will continue to build one of the most robust building safety regimes in the world; that is what we pledged to do, and through the Building Safety Act, the Fire Safety Act and the toughened building regulations we have discussed this evening, that is what we are delivering.